Investing
Band-based or calendar rebalancing: what the comparisons show
Both rules work when they force trade against drift; the measured differences are smaller than the assumptions either way.
Author
Karim Al-Rashid
Karim Al-Rashid tracks company results and property markets, with a habit of looking past the loudest number in the room.
Articles by Karim Al-Rashid
Investing
Why doesn't your index fund match its index?
Tracking difference decomposes into fees, index-replication frictions, sampling and timing — each measurable, none mysterious.
Analysis
How do you detect lookahead bias in someone else's backtest?
A checklist of audit questions — each targeting a specific leak channel — that turns a suspicious track record into a diagnosed one.
Investing
How does the wash-sale rule actually work?
A 61-day window, a substantially identical security, and a deferred loss — the mechanics as the IRS writes them.
Investing
How does an expense ratio compound against a portfolio?
The fee is charged on assets every year, so its cost compounds at exactly the rate the portfolio grows — here is the arithmetic.